No, it’s not just you; the iTunes Store is experiencing issues [Updated]
If you’re having problems downloading apps or installing updates from the App Store, you’re not alone. I am not able to download apps or install updates, and another colleague has verified the same. Also, if you check Apple’s system status page, you’ll see where the iTunes Store is experiencing issues.
This issue appears to be affecting iTunes Store, App Store, and Mac App Store purchases and updates. Best advice? Just be patient until Apple gets things resolved.